X40021S14I-C

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X40021S14I-C : PMIC - Supervisors

The X40021S14I-C is a member of the family of PMIC (Power Management IC) supervisors. It is an active voltage detector capable of detecting voltages as low as 0.7V and as high as 5.5V, with an accuracy of 0.5%. This makes it suitable for use in a wide range of applications, including industrial and consumer equipment.

The X40021S14I-C provides overvoltage, undervoltage and reverse voltage protection, which consists of the following features:

• Undervoltage Protection - Detects input voltages below 0.7V to 5.5V.
• Overvoltage Protection - Detects input voltages above 5.5V to 15V.
• Hysteresis - Provides about 0.5% accuracy for Undervoltage and Overvoltage Protection.
• Reverse Voltage Protection - Automatically cuts off the power supply when reverse voltage is detected.

The X40021S14I-C is a small 4 lead TO-220 package which makes it suitable for use in many applications where space is a constraint. In addition, the device is designed to operate in the temperature range of -40C to +145C, making it a suitable choice for applications where temperature variations are possible.

In terms of working principle, the X40021S14I-C actively monitors the input power supply voltage. It has three adjustable reference voltages that are used to monitor the input voltage. The Reference Voltage (Vref) is the voltage the device uses to monitor the input voltage. This can be adjusted from 0.7V to 5.5V. The Undervoltage Threshold (UVLO) is the voltage at which the device will trigger an undervoltage alarm or shut off the power supply. The Overvoltage Threshold (OVLO) is the reverse of UVLO, and if the input voltage is greater than OVLO, the device will trigger an overvoltage alarm or shut off the power supply. The device also includes a reverse voltage protection which will cut off the power supply for any reverse voltage application.

The X40021S14I-C can be used to monitor and protect a wide variety of applications such as power supplies, charging circuits, voltage regulators, solar inverters and much more. Due to its wide operating temperature range, high accuracy and small size, the device is well suited for use in industrial and consumer equipment as well as automotive applications.

In conclusion, the X40021S14I-C is a member of the PMIC - Supervisors family and provides voltage monitoring, overvoltage, undervoltage and reverse voltage protection. It is designed to operate in a wide temperature range, and its small 4 lead TO-220 package makes it suitable for applications where space is a constraint. It provides accurate voltage protection and is suitable for use in a wide range of industrial, consumer and automotive applications.

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